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Inverse gas chromatographic study of polymer blend interactions and their temperature dependence
Author(s) -
Shi Z. H.,
Schreiber H. P.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070460506
Subject(s) - inverse gas chromatography , polymer , inverse , polypropylene , thermodynamics , surface energy , materials science , polymer blend , component (thermodynamics) , inverse temperature , gas chromatography , chromatography , chemistry , physics , copolymer , composite material , geometry , mathematics
The temperature dependence of the thermodynamic interactions in blends of polypropylene and a fluorochemical was studied by inverse gas chromatography (IGC). A modified procedure has been proposed to evaluate the effective surface composition in polyblends. This shows that the low surface energy component preferentially concentrates in the surface region of blends. Moreover, the new procedure greatly reduces the probe‐to‐probe variation of χ 23 , a problem frequently encountered in thermodynamic applications of the IGC method. As a result, IGC may now be used with increased confidence for the determination of interaction thermodynamics in polymer systems over broad temperature ranges. © 1992 John Wiley & Sons, Inc.